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What size of raw material can be put into the pellet mill?

2020-10-10 13:00:00
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Summary :Grinding is an important process of pelleting. If the raw materials are grinded and then for pelleting, the adhesiveness of the materials will be increased, which will be good for pelletizing.

Grinding is an important process of pelleting. If the raw materials are grinded and then for pelleting, the adhesiveness of the materials will be increased, which will be good for pelletizing. So what size should the material be crushed?

Generally speaking, the raw material needs to be crushed below 6mm to be perfectly granulated. But this is not entirely true. Or in other words, there is actually no such rigid requirement. In fact, as long as the size of the raw material is smaller than the diameter of the die plate, it is fine.

For example. We have a customer who raises pigs and needs a die with a diameter of 5mm. When he uses the grinder, the size of the raw materials after crushing should be smaller than the diameter of the die hole, which is to say, the size of the crushed material need to be less than 5mm.

Wood pellet mill

Some customers may ask, do I have to follow these rules? While, some raw materials do not have to comply with these rules. For example, corn straw, it is a very common raw material. For materials like straw, it is soft after crushing, and it does not matter if the crushed material size is slightly larger, because it also works for the pellet machine.

We also have customers who ask questions like, is the size of the screens in the grinder related to the crushed pellet size? Of course there is. But the size is just for reference not a confirm number. Generally, the screen has five specifications, 2mm, 3mm, 4mm, 5mm, and 6mm. While the crushed material will be much smaller than the screen size. For example, if the customer wants to crush the raw material to 6mm, the screen hole can be 4mm.

We have a lot of practical experience, and will pick the most appropriate screen according to your raw materials, crushing particle size and particle size.

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